Consider a webpage contains a IFrame, in that IFrame it contains only one
text box and a close button is present outside the IFrame.
According to this scenario,
how to click on the close button by filling in some values in Iframe text box

i.e First thing is to select the Frame using the command selenium.selectFrame("1_frame"); and
enter the text using the command selenium.type("id=name","test");
Problem here is,I need to click on the close button which is present outside the Frame.

What command should I use to click on the close button, present outside the frame?
How should I bring the focus to close button ?